Process of transforming substances soluble in alcohol into emulsions in water.



UNITED STATES PATENT OFFICE. a

SAMUEL KNOPF, oF vlENNA, AUSTRIA-HUNGARY.

PROCESS OF 'TRANSFQRMING SUBSTANCES SOIiUBLE IN ALCOHOL INTO EMULSIONSIN WATER.

978,307. Specification of Letters Patent.

No Drawingl To all whom it may concern:

Be it known that .I, SAMUEL-KNOPF, a subject of the Emperor ofAustria-Hungary, residin at-Vienna, in. the Empire of Austriaungary,have invented certain new and useful Improvements in Processes ofTransforming Substances Soluble in Alcohol into Emulsions in Water, offollowing is a specification.

The resent invention relates to thetransformatlon of certain solid orliquid sub stances insoluble in water into clear emulsions, which can bemixed with water of any quantity. The transformation is effected bymeans of oleic acid which is sa onified in the presence of alcoholwithout t e application of heat with a quantity of alkali being inwhichthe suflicient for complete neutralization, and

First 40 which is then mixed with the substances to be emulsified withor without the addition of mineral oils or etroleum; Thus emulsions areformed, t at can be mixed with water in anyquantit In this manner oils,like turpentine, hy rocarbons, as for instance benzin, alsotetrac'hlorid of carbon and quite a number of solid and liquidsubstances insoluble in water like salol, thymol,

'naphthol, ,menthol, naphthalene, can be transformed into emulsions,capable of bemixture eing ready and clear, holdin the "turpentine, evenwhen allowed to stan for a long time, is capable of being mixed withwater in any desirableproportions and can therefore be used for instanceas an addition in soap-manufacture, since it can be stirred into amassof soap, still being liquid without any difliculty. By means of thissoluble turpentine emulsion soap can be made, containing 10% and more ofturpentine, which has been impossible heretofore.

Patented Dec. 13, 1910. Application filed October 23,1908. Serial No.459,278. p

Second, 40 parts of oleic acid are saponified with 20 arts of alcoholand 8 parts of caustic otas lye (1:1) at ordinary temper-, ature. 0 thismixture, a solution of naphthalene 20% to in mineral oil or petroleum80%,to 50% is added, thus forming a liquid which, when mixed with 1-500parts of water, contains the'na hthalene solu- 'tion in extremely fineldivided state without any separation of t is substance in itselfinsoluble 1n water, no matter how much water may be added. Suchemulsions are useful for preserving lants and for the protection ofobjects of' a 1 kinds against moths,

etc., because in liquid form they can be applied easily and because thecost is very low.

Having nowdescribed my invention, what I claim is:

The insolub .sists in saiponifymg at ordinary temperature .oleic aci,substantiall 40 parts, with v 8 partsof 50% caustic a ali solution inthe presence of 20 parts of alcohol, then intimately mixing'the samewith naphthalene dissolved in petroleum forming an emulsion which can bemixed with water in any quan-' tity. Y

In testimony whereof I hereunto ,aflix my signature 1n presence of twowitnesses.

SAMUEL 'KNOPF',

Witnesses: I

Y Ismon Freeman, 1 ROBERT W; HmNcAn'rNnn.

1process for transforming substances e in water into emulsion, which0011-

